Digital Commons Network^™

Towards Securing Smart Contracts Systematically, Duy Tai Nguyen

Dissertations and Theses Collection (Open Access)

Smart contracts are a groundbreaking technique that allows users to programmatically modify the state of the blockchain. They are essentially self-enforcing programs that are deployed and executed on top of the blockchain. In recent years, we have witnessed various smart contract incidents that led to substantial financial losses and even business closures. These incidents mainly arise from design flaws in Solidity, a dominant programming language for writing smart contracts, which complicates the process of detecting and repairing vulnerabilities. Furthermore, there is a growing interest in attacking smart contracts by the attackers. This thesis is dedicated to developing effective methods to …

Weakly-Supervised Semantic Segmentation, Zhaozheng Chen

Dissertations and Theses Collection (Open Access)

Semantic segmentation is a fundamental task in computer vision that assigns a label to every pixel in an image based on the semantic meaning of the objects present. It demands a large amount of pixel-level labeled images for training deep models. Weakly-supervised semantic segmentation (WSSS) is a more feasible approach that uses only weak annotations to learn the segmentation task. Image-level label based WSSS is the most challenging and popular, where only the class label for the entire image is provided as supervision. To address this challenge, Class Activation Map (CAM) has emerged as a powerful technique in WSSS. CAM …

Technical Maturity And Network Effects Of Xf Artificial Intelligence Open Platform, Tao Jiang

Dissertations and Theses Collection (Open Access)

Studying the impact mechanism of the commercial value of artificial intelligence open technology platforms has theoretical and practical significance. This article aims to enrich and expand the theoretical research on technology maturity, value co creation, and network effects on open technology platforms at home and abroad through empirical research on artificial intelligence open technology platforms and ecology. This study takes XF's open technology platform case as the research object, and based on technology maturity theory, value co creation, and network effects theory, examines the network effect value creation mechanism of open technology platforms driven by technology maturity in three development …

The Relationship Between Reits Industry Characteristics And Project Performance: The Moderating Role Of Macroeconomic Fluctuations, Ying Cai

Dissertations and Theses Collection (Open Access)

As a distinct investment vehicle, Publicly Listed Real Estate Investment Trusts (REITs) projects enable real estate projects to be listed on the stock market. This study begins with the industry attributes of the underlying assets of Publicly Listed REITs projects. Using econometric methods, it analyzes the variances in market performance between growth and defensive REITs, based on annual data from 1,674 REITs products in the United States from 2005 to 2022 and 27 listed REITs in China from Q3 2021 to Q1 2023. The study also leverages the data from China to explore the moderating effects of macroeconomic factors such …

Supporting Software Engineers With Large Language Model-Based Automation, Ting Zhang

Dissertations and Theses Collection (Open Access)

In recent years, software engineering (SE) has witnessed significant growth, leading to the creation and sharing of an abundance of software artifacts such as source code, bug reports, and pull requests. Analyzing these artifacts is crucial for comprehending the sentiments of software developers and automating various SE tasks, ultimately leading to more human-centered automated SE and enhancing software development efficiency. However, the diverse and unstructured nature of software text poses a significant challenge to this analysis. In response, researchers have investigated a variety of approaches, including the utilization of natural language processing techniques. The advent of large language models (LLMs), …

Exploring The Operationalization Of Market Sensing In A Higher Education Organization, Ashish Bhardwaj

Dissertations and Theses Collection (Open Access)

Market sensing is a dynamic capability of an organization that enables management to understand the market environment and develop strategic plans that best position the organization to continue to be relevant to the marketplace and sustain an advantaged competitive position. Extant research has explored the difference between ordinary and dynamic capabilities and proposed the role of dynamic capabilities as enabling the configuration and reconfiguration of the organization’s assets in response to or in anticipation of a rapidly evolving market environment, to maintain competitive advantage.

Market sensing dynamic capability has been hypothesized to consist of three key organizational processes – sensing, …

Determinants Of Business Organization’S Adoption Of Complex Innovative Product: A Case Of The Intelligent Iot System For Hog-Raising, Jingguan Cao

Dissertations and Theses Collection (Open Access)

With the development of science and technology, various opportunities emerged for the application of complex innovative products. However, not all business organizations are willing to adopt complex innovative products although these products can improve efficiency and reduce costs of the organizations, because there are bound to be various problems in the early application of new technologies. Hence, it is important to find the key influencing factors for the acceptance of complex innovative products by business organizations. The Internet of Things (IoT) is a typical complex innovative product, and this dissertation takes the intelligent IoT system for hog-raising as a case …

Construction Of Esg Evaluation Index System Of State-Owned Listed Companies: Analysis Based On The Perspective Of Comprehensive Corporate Value, Yiping Sun

Dissertations and Theses Collection (Open Access)

In this paper, I explore the applicability of environmental, social, and governance (ESG) evaluation systems to Chinese state-owned enterprises (SOEs). I assess these ESG evaluation systems in terms of the overall value of Chinese SOEs and point out that these enterprises do not have their own evaluation system. Establishing an ESG system for Chinese SOEs can encourage them to disclose quantifiable indicators, thus objectively demonstrating their comprehensive ESG performance and helping to enhance their overall value. I examine the current ESG evaluation systems in detail and find that there are many problems in applying the main international evaluation systems to …

The Impact Of Equity Incentive Executive Compensation On Corporate Performance, Bing Ruan

Dissertations and Theses Collection (Open Access)

The management rights and ownership of modern enterprises are often separated. Enterprise owners, i.e. shareholders, pursue the maximization of enterprise profits, while enterprise managers pursue the maximization of their own interests. This leads to conflicts between the two parties in the process of pursuing the maximization of their respective interests. To address the inconsistency of interests in principal-agent relationships, effective corporate governance mechanisms are needed. The equity incentive system is one of the important means for modern enterprises to implement effective human capital management. Its purpose is to bind the personal interests of management with the interests of the enterprise, …

Do Government Subsidies Promote Green R&D Efficiency? Empirical Evidence From China, Huimin Wu

Dissertations and Theses Collection (Open Access)

How to evaluate the effects of government policy on encouraging innovations? Existing studies strongly argue to reduce subsidies compared to indirect policy tools, such as tax rebate. However, direct government grants are popular and keep gaining momentum in China. Such a discrepancy between academic research and common practice is interesting and calls for further investigations. In the meantime, is there any difference for this issue if considering green attributes? In this article, we use data from Chinese A-share listed companies to study the effect of government subsidies on R&D activities, with a special focus on comparing green and non-green inventions. …

The Cost Of Cheap Talk: How Campaign Promises And Default Contributions Affect Donation-Based Crowd Funding Success., Tianci Leon Qiu

Dissertations and Theses Collection (Open Access)

Non-profit organisations (NPOs) find it increasingly harder to engage donors and raise funds from the public. Post-pandemic: the emphasis on tactics to raise funds online through donation-based crowdfunding (DCF) platforms has surged in importance for both NPO survival and continued beneficiary aid. However, unlike equity-based crowdfunding platforms where campaign organisers are obligated to provide investors with tangible returns based on funding milestones, NPOs on DCF platforms do not have to adhere to any funding milestones or are beholden to any tangible obligations towards donors. Consequently, NPOs are greatly incentivised to deploy cheap talk – non-binding, unverifiable messages and claims to …

Mentor Holding Behaviours: The Role Of Supervisors And Effects On Protégés, Menzhong Gao

Dissertations and Theses Collection (Open Access)

The concept of holding behaviours has emerged as a response to the paradox that arises when employees require support but organisations face challenges in providing it. In today’s workplaces, job demands and organisational uncertainty have escalated, rendering traditional, hierarchical support systems inadequate to alleviate anxiety. Holding environments offer a temporary safe space for employees to express emotions and cope with uncertainty and insecurity.

Despite the importance of holding behaviours in addressing self-reliance and support dilemmas, limited research has been conducted on their antecedents, consequences, mechanisms, and boundary conditions. To fill this gap, this study proposes a trickle-down model that integrates …

Analyzing Taxi Drivers’ Decision-Making And Recommending Strategies For Enhanced Performance: A Data-Driven Approach, Mengyu Ji

Dissertations and Theses Collection (Open Access)

This thesis focuses on analyzing the decision-making process of taxi drivers and providing data-driven strategies to enhance their performance. By examin- ing comprehensive historical data encompassing passenger demand patterns, drivers’ spatial dynamics, and fare structures, valuable insights are gained into drivers’ choices regarding optimal routes, timing, and areas with high demand. Integrating real-time information sources, such as GPS data and passenger updates, allows drivers to adapt their strategies dynamically to changing traffic conditions and emerging demand patterns. Predictive analytics models, includ- ing ARIMA, XGBoost, and Linear Regression, are utilized to forecast demand flow at key locations, enabling proactive decision-making and …

Expressed Humility In Inter-Organization Interactions: Why And When Boundary-Spanning Leaders’ Expressed Humility Can Promote Partner Cooperation Commitment, Wenhao Yang

Dissertations and Theses Collection (Open Access)

In an organization, expressing humility can promote more meaningful and satisfying relationships with others. Given its potentially positive effects, researchers have been interested in studying the promotion and management of expressed humility for decades. Although there is some literature on the mechanism of expressing humility within an organization, none of them has pointed out the positive effects of expressed humility between organizations represented by their boundary-spanning leaders. Specially, no research efforts have been devoted to understanding how expressed humility between partners affects the economic behavior and outcomes of organizations and when it is effective for positive effects.

In this paper, …

Search Models Of Money: Alternative Means-Of Payment And Consumer Behaviour With Credit, Kheng Tat Marcus Tan

Dissertations and Theses Collection (Open Access)

This dissertation consists of three chapters on Search Models of Money.

The first chapter is a review of recent advances in Search Models of Money. It reviews the Lagos and Wright (2005) framework which is the workhorse of many modern search models with applications to models with Competing Media of Exchange to Fiat Currency, and models with Money and Credit. We trace the history of the development of search models of money from the first generation to present day. We highlight recent developments that address puzzles such as the coexistence of money in an environment where an asset serves as …

The (Simp)Le Truth About Excessive & Obsessive Romantic Behaviors In Men, Daniel Ho

Dissertations and Theses Collection (Open Access)

There has been a growing trend in mainstream media of certain individuals being termed as simps, generally recognized as people who engage in costly or extravagant romantic behaviors toward a romantic interest, but are often met with no reciprocation. It is suggested that simping behaviors appear to be an evolutionarily maladaptive mating strategy where individuals engage in excessive and obsessive behaviors when pursuing a romantic interest. The current research aimed to explore this phenomenon, to identify specific traits and characteristics that are typical of simps and simping behavior. Across a set of two studies comprising an act nomination and act …

Effect Of Leader-Member Exchange Social Comparison On Co-Worker’S Envy And Work Behavior Moderated By Perceived Deservingness Of Star Workers, Ronnie Ng

Dissertations and Theses Collection (Open Access)

The extant leader-member exchange (LMX) literature suggests that leaders establish and develop different quality dyadic relationships with members in the same workgroup. High-quality LMX is argued as beneficial to employees. However, studies have overlooked the emotions and behaviors of low-quality LMX employees to determine how they differ from high-quality LMX employees. This study integrates LMX differentiation literature, social comparison theory and attributional theory to examine the role of LMX social comparison (LMXSC) perceptions in triggering help-seeking and knowledge hiding from star co-workers in the workplace. This study also explores the mediating role of dual envy, that is, benign and malicious …

Reinforcement Learning For Sequential Decision Making With Constraints, Jiajing Ling

Dissertations and Theses Collection (Open Access)

Reinforcement learning is a widely used approach to tackle problems in sequential decision making where an agent learns from rewards or penalties. However, in decision-making problems that involve safety or limited resources, the agent's exploration is often limited by constraints. To model such problems, constrained Markov decision processes and constrained decentralized partially observable Markov decision processes have been proposed for single-agent and multi-agent settings, respectively. A significant challenge in solving constrained Dec-POMDP is determining the contribution of each agent to the primary objective and constraint violations. To address this issue, we propose a fictitious play-based method that uses Lagrangian Relaxation …

Generalizing Graph Neural Networks Across Graphs, Time, And Tasks, Zhihao Wen

Dissertations and Theses Collection (Open Access)

Graph-structured data are ubiquitous across numerous real-world contexts, encompassing social networks, commercial graphs, bibliographic networks, and biological systems. Delving into the analysis of these graphs can yield significant understanding pertaining to their corresponding application fields.Graph representation learning offers a potent solution to graph analytics challenges by transforming a graph into a low-dimensional space while preserving its information to the greatest extent possible. This conversion into low-dimensional vectors enables the efficient computation of subsequent graph algorithms. The majority of prior research has concentrated on deriving node representations from a single, static graph. However, numerous real-world situations demand rapid generation of representations …

An Empirical Research On The Financial Distress Risk In The Garden And Construction Industry, Jianlin Guan

Dissertations and Theses Collection (Open Access)

In recent years, the garden and construction industry has faced significant financial distressdue to the downward pressure on the macro economy. This financial distress not onlyposesrisks to the financial stability and management of enterprises but also has far-reachingimpactson society.

This paper utilizes various analytical methods such as case analysis, empirical analysis, andevent analysis to derive the following conclusions:(1)The participation of garden constructionindustry enterprises in public-private partnership (PPP) projects leads to increased financial distress.(2)The higher the debt ratio of the local government where listed gardenandconstruction enterprises are located, the greater the financial distress theyexperience.(3)Enterprises in the garden and construction industry, whose …

Awe And Relationship Quality, Gloria Junyan Lai

Dissertations and Theses Collection (Open Access)

The experience of awe has been studied as having self-transcending outcomes that produce a decrease in importance of the individual’s interests and an increase in the interests of others. This shift in self-concept is said to be a sense of self-diminishment vis-à-vis perceived vast stimuli. When applied to a romantic relationship context, it is possible that a shift of attention away from self-serving motives, towards relationship-enhancing motives, may promote positive relationship outcomes. As such, the current study examined how experimentally induced awe may influence relationship commitment and forgiveness via an expected increase in self-diminishment. 607 participants were randomly assigned to …

Consumer Reaction To The Use Of Artificial Intelligence Chatbot On Distribution Of General Insurance In Singapore, Lai Hing Tan

Dissertations and Theses Collection (Open Access)

As technology rapidly permeates all aspects of our lives, it is not unusual to question and even challenge the rationale on why certain industries are slower to adapt to the new digital age. Insurance is a business that is under scrutiny given its traditional ways of selling and legacy challenges. Why is technology investment in insurance companies lagging others? One emerging technological disruption is artificial intelligence (AI). It is the science of designing and building intelligent systems that can complete tasks traditionally performed by humans. AI is expected to fundamentally transform today’s marketplace, for businesses and consumers alike. However, because …

Connecting The Dots For Contextual Information Retrieval, Pei-Chi Lo

Dissertations and Theses Collection (Open Access)

There are many information retrieval tasks that depend on knowledge graphs to return contextually relevant result of the query. We call them Knowledgeenriched Contextual Information Retrieval (KCIR) tasks and these tasks come in many different forms including query-based document retrieval, query answering and others. These KCIR tasks often require the input query to contextualized by additional facts from a knowledge graph, and using the context representation to perform document or knowledge graph retrieval and prediction. In this dissertation, we present a meta-framework that identifies Contextual Representation Learning (CRL) and Contextual Information Retrieval (CIR) to be the two key components in …

Driving Forces Of Mining Outsourcing: Evidence From China, Bingxu Zheng

Dissertations and Theses Collection (Open Access)

The outsourcing of services by mining enterprises has become a significant global trend. Classic studies have demonstrated that outsourcing can help enterprises obtain professional services, improving productivity and reducing production costs. However, as a transitional economy, China has its unique characteristics regarding the driving forces of service outsourcing. By employing a case study method, one mining service outsourcing provider, and five mining enterprises' interviews and archival data, this study constructs a theory to identify the driving forces and mechanisms of mining enterprises' choice of service outsourcing and a logic relationship between variables via a diagram.

The case study results reveal …

The Effects Of A Private Domain Strategy On Retail Sales Performance, Jianzhong Chen

Dissertations and Theses Collection (Open Access)

The proliferation of Internet technology has led people to become increasingly accustomed to online consumption, thus forming a substitution effect for offline consumption. In particular, the development of social media helps retailers circumvent public domain platforms and develop their own controllable private domain channels to cultivate emotionally connected loyal consumers and finally realize the monetization of emotional relationships. Through empirical study of the quarterly data of 244 self-operated stores of Sanse Corporation in the fourth quarter of 2022, this research obtained the following results: 1. The implementation of private domain marketing strategies, including private domain membership development strategies, live conversion …

Cbdc: Context, Challenges, And Conditions For A Successful Adoption, Charlie Nhuc Hiang Lay

Dissertations and Theses Collection (Open Access)

Central bank digital currencies (CBDC) are the digital version of physical notes and coins. They are the latest milestone in the evolution of money over the centuries due to technological advancements. This digitalisation of physical money primarily serves as a medium of exchange that has a central bank anchor. There are two versions of CBDC, wholesale and retail. This thesis focuses on retail CBDC, which targets the general public and small daily transactions. It discusses the issues and the plausible implementation of a retail CBDC. A CBDC will preserve monetary sovereignty, foster financial stability, and counter private network effects, i.e., …

Dissertation On The Impacts Of Floods And Trade War On The Chinese Economy, Fan Zheng

Dissertations and Theses Collection (Open Access)

In the first chapter of the dissertation, we study the impact of floods on microlevel firm performances in China for the period 2000-2009. Among the first in the literature, we identify the flood exposure directly at the firm level by combining the high-resolution satellite-observed inundation areas with the geocoded firm locations. We find that being hit by a flood is associated with an annual loss to output and productivity of around 6% and 5%, respectively, which persists in the long run. The impacts of floods extend to non-inundated firms in neighborhoods (of 4 kilometres in radius), but the negative effects …

Title Matters: Impacts Of Titles On User Engagement In Short Video Platforms, Hao Chen

Dissertations and Theses Collection (Open Access)

With the increasing popularity of short video marketing in business world, understanding how to engage short video viewers has attracted the attention from both academics and practitioners. Prior studies on short videos mainly focus on how characteristics of users or the attributes of video content affect marketing effectiveness. As a heuristic cue of short video content, the video title is expected to grab viewers’ attention thereby playing an important role in influencing viewers’ attitudes towards the short video consumption. Drawing on signaling theory, I propose that the characteristics of short video titles, such as the length, the sentiment strength, and …

Research On The Relationship Between Service-Oriented Manufacturing Platforms And Customer Enterprise Innovation — Evidence From The 3d Printing Industry, Donglai Zhao

Dissertations and Theses Collection (Open Access)

Micro, small and medium-sized enterprises (MSMEs) are highly flexible and creative and play a significant role in the national economy and in employment, innovation, and entrepreneurship. However, due to their relatively small size, low technical level, lack of funds and talent, and backward management, they generally face development predicaments, such as the pressure to survive and weak anti-risk abilities. Therefore, in addition to leveraging their initiative to develop their competitive strength, making full use of external public service resources has become one approach MSMEs can take to find a way out of such predicaments. Various service-oriented manufacturing platform enterprises have …

The Impact Of Ipo Pricing Model On The Issuing Price: Evidence From China, Shancheng Chen

Dissertations and Theses Collection (Open Access)

IPO pricing effectiveness refers to the deviation between the IPO price in the primary market and the actual trading price in the secondary market at the initial stage of listing. IPO underpricing ratio is the main research index used to investigate the effectiveness of IPO pricing in capital market. The phenomenon of excessive IPO underpricing brings many problems to the development of Chinese capital market. The GEM from the establishment of the initial audit system to the registration system, to the inquiry of the implementation of the new rules, IPO underpricing rate has been gradually controlled. This paper mainly studies …